I have noticed that VTG Singles did have a cruise planned for Single parents with kids. You need to call them up and find out when they plan to do another cruise.
My advise is to invite a cousin to spend time with your 12yr.old child so they can hang out together on the cruiseship. I have noticed that teens/kids have the best time ever on a cruise ship. I heard that the crew workers say that the kids fall in love with cruising and they leave the ship kicking and screaming that they don't want to leave the ship.
I think it would be great to take your child on a cruise with you.
BELIEVE ME.... SINGLES CRUISES ARE FANTASTIC you can't compare it to Parents without Partners.